[PATCH for-5.10] spi: rb4xx: Don't leak SPI master in probe error path

[Lukas Wunner <lukas@xxxxxxxxx>]

If the calls to devm_clk_get(), devm_spi_register_master() or
clk_prepare_enable() fail on probe of the Mikrotik RB4xx SPI driver,
the spi_master struct is erroneously not freed.

Fix by switching over to the new devm_spi_alloc_master() helper.

Fixes: 05aec357871f ("spi: Add SPI driver for Mikrotik RB4xx series boards")
Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v4.2+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation
Cc: <stable@xxxxxxxxxxxxxxx> # v4.2+
Cc: Bert Vermeulen <bert@xxxxxxxx>
---
 drivers/spi/spi-rb4xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-rb4xx.c b/drivers/spi/spi-rb4xx.c
index 8aa51beb4ff3..9f97d18a05c1 100644
--- a/drivers/spi/spi-rb4xx.c
+++ b/drivers/spi/spi-rb4xx.c
@@ -143,7 +143,7 @@ static int rb4xx_spi_probe(struct platform_device *pdev)
 	if (IS_ERR(spi_base))
 		return PTR_ERR(spi_base);
 
-	master = spi_alloc_master(&pdev->dev, sizeof(*rbspi));
+	master = devm_spi_alloc_master(&pdev->dev, sizeof(*rbspi));
 	if (!master)
 		return -ENOMEM;
 
-- 
2.28.0